A heating, ventilation, and air-conditioning (“HVAC”) system. The HVAC system may include a refrigeration circuit and a blower system. The refrigeration circuit may include a compressor, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger. The blower system may include a first direct-drive blower and a second direct-drive blower. The first direct-drive blower may flow air over the indoor heat exchanger. The second direct-drive blower may flow air over the indoor heat exchanger and the second direct-drive blower may operable and positionable relative to the indoor heat exchanger independently from the first direct-drive blower.

A heating, ventilation, and air-conditioning (“HVAC”) system. The HVAC system may include a refrigeration circuit and a blower system. The refrigeration circuit may include a compressor, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger. The blower system may include a first direct-drive blower and a second direct-drive blower. The first direct-drive blower may flow air over the indoor heat exchanger. The second direct-drive blower may flow air over the indoor heat exchanger and the second direct-drive blower may operable and positionable relative to the indoor heat exchanger independently from the first direct-drive blower.

A rotor is a consequent pole rotor. The rotor includes a first magnetic pole region functioning as a first magnetic pole, a second magnetic pole region functioning as a second magnetic pole that is a pseudo-magnetic pole, a shaft disposed in a shaft insertion hole, and a nonmagnetic member coupling the shaft to the rotor core. The nonmagnetic member includes a beam extending from the shaft to the second magnetic pole region.

An air-conditioning apparatus includes: a housing having an intake air passage communicating with an air inlet and a blowout air passage communicating with an air outlet that allows air to be blown out in a single direction; a fan; a front heat exchanger facing the air outlet of the housing and including first and second heat exchangers; and at least one of rear and side heat exchangers that face rear and side surfaces of the housing, respectively. When the front heat exchanger operates as a condenser, the first heat exchanger operates as a condenser, and condensed and liquified refrigerant flows in the second heat exchanger. The second heat exchanger is located downstream of the first heat exchanger and the at least one of the rear and side heat exchangers in the flow direction of a refrigerant.

A heat exchange unit includes a housing having an inflow air passage communicating with an air inlet, and an outflow air passage communicating with an air outlet, a first partition plate that partitions an inside of the housing into the inflow air passage and the outflow air passage, a bellmouth disposed around an opening formed in the first partition plate, a centrifugal fan disposed on the first partition plate via the bellmouth, and a heat exchanger disposed on a downstream side of the centrifugal fan in the housing. The air inlet is open at any surface of the housing having the inflow air passage. The air outlet is open at any side surface of the housing having the outflow air passage. The inflow air passage is formed between a fan inlet and a main plate closest to the fan inlet to reach a rear surface. The fan inlet is an air inlet of the centrifugal fan.

An air conditioner includes a heat exchanger, a fan and a fan case in which the fan is accommodated. The fan case includes an inlet opening through which air sucked by the fan enters the fan and an outlet opening through which the air that entered the fan is blown by the fan to be discharged from the fan case. An air guide is spaced from a lower end portion of the outlet opening to form a gap through which the air flows to guide the air to a down direction. The air guide includes an inclined portion inclined downward toward an outer side in a lateral direction to guide air to the lateral direction.

An air conditioner includes a heat exchanger, a fan and a fan case in which the fan is accommodated. The fan case includes an inlet opening through which air sucked by the fan enters the fan and an outlet opening through which the air that entered the fan is blown by the fan to be discharged from the fan case. An air guide is spaced from a lower end portion of the outlet opening to form a gap through which the air flows to guide the air to a down direction. The air guide includes an inclined portion inclined downward toward an outer side in a lateral direction to guide air to the lateral direction.

The present disclosure provides a fan coil unit and an air conditioning system. The fan coil unit includes: a housing, which defines an airflow inlet, an airflow outlet, and an airflow path from the airflow inlet to the airflow outlet; a cross-flow fan, which is located at the airflow inlet to introduce an airflow into the housing; and a heat exchange unit located downstream of the cross-low fan on the airflow path.

An air circulation device for an air purifier includes an air passage apparatus which includes an air passage body having a first air outlet and a second air outlet formed in an opposing manner and defining an air passage between the first air outlet and the second air outlet, and an air flow generating unit mounted to the single fan unit in the air passage body and configured to draw air inletting into the air passage and form an air flow flowing towards the first air outlet and the second air outlet. The air circulation device further includes an air distribution member disposed in the air passage body and configured to provide different air outlet flowing speeds at the first air outlet and the second air outlet.

An air circulation device for an air purifier includes an air passage apparatus which includes an air passage body having a first air outlet and a second air outlet formed in an opposing manner and defining an air passage between the first air outlet and the second air outlet, and an air flow generating unit mounted to the single fan unit in the air passage body and configured to draw air inletting into the air passage and form an air flow flowing towards the first air outlet and the second air outlet. The air circulation device further includes an air distribution member disposed in the air passage body and configured to provide different air outlet flowing speeds at the first air outlet and the second air outlet.